1 5

Fosi Audio

Fosi Audio BT20A Pro Bluetooth Power Amplifier

Fosi Audio BT20A Pro Bluetooth Power Amplifier

  • Authorized Retailer
  • Free US Shipping $49+
  • 1-Year Warranty
  • 45-Day Returns
$125.99 USD
$125.99 USD
Sale Sold out
Shipping calculated at checkout.
Color

The Fosi Audio BT20A Pro is a mini Class D stereo power amplifier built on the TPA3255 chip, with Bluetooth input, 300W x2 output and bass and treble controls. This listing is the 48V power supply version.

The 48V variant is the one to pick when you want the amp's full output on the table for less sensitive bookshelf speakers or a larger room. Bass and treble controls are genuinely handy here since many desktop speaker placements need a little correction that a purist amp will not give you.

  • TPA3255 Class D, 300W x2
  • Bluetooth input, bass and treble controls
  • 48V power supply version
  • Free US shipping over $49, 45-day returns
View full details
Good to know

Frequently asked questions

Is this unit genuine?

Yes. TonePier is an authorized retailer — every unit comes from the brand or its official distributor, carries a valid serial number and is covered by the full manufacturer warranty.

How long does shipping take?

SKUs stocked in our US warehouse ship within 1–2 business days. Items shipped direct from our China hub typically arrive in 8–15 days with full tracking. The product page tells you which applies before you order.

What if it isn't for me?

You get 45 days to decide. Keep the packaging, keep it in like-new condition, and send it back for a refund. Ear tips unsealed for hygiene reasons are fine — we expect you to actually listen.